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Set LLVM Flag to Disable cmov (select instr) generation #380

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merged 8 commits into from
Aug 7, 2024
Merged

Set LLVM Flag to Disable cmov (select instr) generation #380

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8a216ad
Add -simplifycfg-branch-fold-threshold=0 flag to elminate LLVMs selec…
DanBlackwell Aug 2, 2024
75ecc74
Hide simplifycfg-branch-fold-threshold=0 behind flag disable_branch_f…
DanBlackwell Aug 6, 2024
d905034
Set default value for disable_branch_folding
DanBlackwell Aug 6, 2024
160066d
Missing space character
DanBlackwell Aug 6, 2024
7990230
Move disable_branch_folding over to Option<bool> and default false fo…
DanBlackwell Aug 6, 2024
83cb30b
Set disable_branch_folding to default true
DanBlackwell Aug 6, 2024
03d4040
Inline disable_branch_folding explanation to the doc comment
DanBlackwell Aug 7, 2024
9daf1fc
Keep the linter happy
DanBlackwell Aug 7, 2024
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3 changes: 2 additions & 1 deletion src/project.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -168,7 +168,8 @@ impl FuzzProject {
let mut rustflags: String = "-Cpasses=sancov-module \
-Cllvm-args=-sanitizer-coverage-level=4 \
-Cllvm-args=-sanitizer-coverage-inline-8bit-counters \
-Cllvm-args=-sanitizer-coverage-pc-table"
-Cllvm-args=-sanitizer-coverage-pc-table \
-Cllvm-args=-simplifycfg-branch-fold-threshold=0"
.to_owned();

if !build.no_trace_compares {
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